S01E01 – Week 1:
Evil genius YOU is driving around Tokyo in her sponsored TOYOTA car, plotting her latest evil plan: Put six strangers in a big house by the sea and let the drama unfold. It’s a social experiment to find out if Japanese people are capable of forming relationships and/or get laid. Spoiler: They are terrible at it.

S01E02 – Week 2:
Momo-chan finds a weird face massage thing. Seina drinks wine.

S01E03 – Week 3:
Seina drinks wine. Seina tries to be more healthy. Lets see how that goes…

S01E04 – Week 4:
Ricchan and Tecchan are doing the dishes together. Disappointment is in the air. Seina drinks wine.

S01E05 – Week 5:
Ma-kun is wearing awesome pants. Tecchan is trying to be an AKB girl. Seina drinks wine.

S01E06 – Week 6:
Tecchan is planning his date with Ricchan. The AKB48 otakus are planning an assassination attempt on Tecchan. Shota-kun is forever alone.  Seina drinks wine.

S01E07 – Week 7:
Seina and Ricchan performs at Girls Award. Seina drinks more than just wine.

S01E08 – Week 8:
Ma-kun and Ricchan does Japan’s national sport, waiting in line. Momo-chan gets an Avatar treatment. Seina drinks sparkling wine.

S01E09 – Week 9:
Everyone is trying to make a man out of Tecchan. Seina drinks wine (and eats cheese).
https://www.youtube.com/watch?v=B2MWm2bYyMw

S01E10 – Week 10:
Tecchan is pursuing his new career as hikikomori. Ma-kun is planning his escape. Seina drinks wine.

S01E11 – Week 11:
This week of Tecchan House: Tecchan pursues a new career as an actor, so he can be on TV just like Ricchan. Seina drinks wine.
https://web.archive.org/web/20171123001312/https://terriblehouse.com/wp-content/uploads/2017/09/Screenshot-from-2017-09-03-20-45-23.png

S01E12 – Week 12:
Christmas Party in the house. Tecchan tries to hold Ricchan’s hand. Tecchan dresses like an american. Seina drinks red wine for Christmas.

S01E13 Special – Week 13:
Evil villain YOU is watching her experiment from the control room. So far everything is going as expected. Japanese people are terrible at getting laid and find it very difficult to even hold hands. This is a special episode focusing on the most interesting subject, Tecchan. He gets to meet Taylor Swift, then YOU does a recap of what the hell Tecchan as been up to for the past 12 weeks.

S02E01 – Week 14:
Evil villain YOU gets a sidekick for her social experiment, the Austrian haafu Triendl, aka Tori-chan. Gyaru model Hana-chan moves into the house. Seina welcomes the new house mate by opening a bottle of wine.

S02E02 – Week 15:
Sho-kun is preparing for his new life. Hana-chan goes to the coming of age ceremony in her home town. Tecchan makes sukiyaki. Seina drinks wine.
https://en.wikipedia.org/wiki/Coming_of_Age_Day

S02E03 – Week 16:
The kick-boxer Daiki-kun invades Tecchan’s harem. Momo-chan tries to be a DJ in Shibuya. Tecchan goes to a photo-shoot but hides from the photographer. Seina drinks black tea (with red wine in it).

S02E04 – Week 17:
Daiki makes a move before Tecchan can say “nanka”, and brings Hana out on a date. Seina is plotting her revenge against Sho-kun. Seina tells Daiki about her life motto, “お酒がないと生きてけない”, then drinks all the wine.

S02E05 – Week 18:
Tecchan is being taught how to be an actor, (or so they say could be a long running practical joke). Daiki teaches the house mates how to throw a punch. Seina goes to Narita to see Ma-kun.

S02E06 – Week 19:
Producers at Fuji TV pulls some strings and get Tecchan his first acting job. His back shoulder is shown on TV for a few seconds. He gets to meet Tori-chan. Seina makes chocolate with wine in it.

S02E07 – Week 20:
Another Tetsuya enters the house. He is a model, a pharmacist, mensa member and has a wikipedia article. But Tecchan stands his ground; there shall only be one Tecchan in the house, and names the newcomer Oji (the prince). Daiki confides in Seina who immediately spill the beans.
https://en.wikipedia.org/wiki/Tetsuya_Iwanaga_(model)

S02E08 – Week 21:
Since Daiki is not Tecchan, he asks Hana out on a second date where they go and fill their mouths with strawberries. When Tecchan and Seina are forever alone in the house, he tells her a secret, but completely forgets that there is a camera crew present and that everyone will watch the episode the following week.

S02E09 – Week 22:
This week on Tecchan House: Tecchan goes to work (once). Tecchan goes to acting class. Tecchan is awkward among people. Tecchan learns that secrets lasts about one week before they are broadcasted on national TV.

S02E10 – Week 23:
Daiki is fasting to loose weight for his championship, Hana cooks food for him anyway. Tecchan does nothing. Momo-chan is hiding. Oji is finding Waldo. Seina drinks wine.

S02E11 – Week 24:
Daiki tries cultural appropriation as a lucky charm and braids his hair. The match he’s been nagging about in every single episode since he arrived have finally come. He enters the match more pumped up than Yama-chan on speed.

S02E12 – Week 25:
Daiki won the match. Now he will try to win the girl. With Daiki and Hana being all ラブラブ and Momo-chan leaving, Tecchan wants to be happy as well. Seina recommends tequila to be happy. Seina drinks wine, tequila and champagne, and becomes very happy. Oji is socially awkward.

S03E01 – Week 26:
YOU and Tori-chan realized that keeping an eye on these people and commenting Tecchan House is a lot of work, and call for reinforcements. A new girl is about to enter the house. Will Tecchan be friend zoned once again? Seina drinks wine.

S03E02 – Week 27:
Seina is trying to contact Ma-kun, but he is ghosting her. New girl Aya joins the house. Her life goal is to get married at the Doraemon museum. Will it be Tecchan or Oji? Or will her stay in Terrace House make her give up on love all together? Seina drinks wine.

S03E03 – Week 28:
Oji and Seina goes out on a second date. Seina drinks wine. Aya complains about the filth in Terrace House and the house mates decides to clean it. Ma-kun visits the house.

S03E04 – Week 29:
Ma-kun and Seina have their talk and it goes as expected. Seina turns 26 and throws a party where she drinks all the wine in the house before leaving it. Tecchan cries. Will this be the last we see of Seina?

S03E05 – Week 30:
Everyone is excited about the new idol that moved in, and Daiki is being very creepy about it. Tecchan tries to impress her by showing that he is the designated Terrace House chauffeur (it’s not like he has anything better to do). Aya tries to get Oji interested in her. Hana drinks wine.

S03E06 – Week 31:
Hana is busy sailing on dry land. Aya goes on a date with Oji. Tecchan goes to the supermarket with Miko (and think it’s a date). No one drinks wine. :(

S03E07 – Week 32:
Daiki have another match, this time against a Korean with a silly mustache. Everyone goes out “camping” in a cabin, to BBQ, drink and have hard talks.

S03E08 – Week 33:
It seems that Hana and Daiki did not take Seina’s advice, and the ‘getting laid counter’ is still zero in Terrace House. Tecchan tries to explain birds and bees to the girls, but ends up talking about batteries instead. Tecchan goes on a skateboard date with Mi-chan.

S03E09 – Week 34:
Tecchan gets manlyness advice from Momo-chan. Daiki is very hungover. Aya and Oji goes to the aquarium on a date.

S03E10 – Week 35:
Tecchan gets his first real acting gig with actual lines. The girls get drunk in the kitchen. Daiki trains kickboxing with Mi-chan and Aya-chan. Hana-chan whips Oji’s ass.

S03E11 – Week 36:
Daiki goes out to eat legit Indian curry with Mi-chan. Tecchan cooks yakisoba for breakfast. The guys’ butts are shown on national TV. Tecchan gets his heart crushed when watching national TV.

S03E12 – Week 37:
Tecchan and Ma-kun goes surfing. Daiki drinks beer in the garden. Tecchan’s “acting” skills are broadcasted on TV. Tecchan throws a party for the house mates that are leaving, and calls for adequate reinforcements from Momo-chan and Seina.

S03E13 – Week 38:
Seina gets shitfaced by drinking wine and stirs up the party in a way only Seina can do. The housemates wake up hungover in a messy house to say good bye. Tecchan works on his acting skills. New members are ready to move in.

S04E01 (Week 39) – S04E11 (Week 49):
unfortunately lost to time

S04E12 – Week 50:
Midori turns 21 and throws a birthday party. The house mates prepares to move to a new house. They get kicked out due to excessive wine stains and lack of sex in the house.

S05E01 – Week 51:
Daiki goes from kickboxing to unboxing. Tecchan eagerly awaits the new girl joining. Will the new house cause more things to happen, or will they need to call in Seina-sensei?

S05E02 – Week 52:
Tecchan is practicing for the sleeping olympics in Tokyo 2020. Daiki tries to wear a suit. Tecchan goes surfing with Maimai.

S05E03 – Week 53:
The house mates now try to re-brand Tecchan as the least smooth guy in Japan. Maimai is a bull in the figurative social china shop.

S05E04 – Week 54:
Rinati is plotting how to kill Maimai. Should she push her down the stairs? Use piano wire to blame a pianist? Or maybe poison her Chey latte?

S05E05 – Week 55:
Tecchan goes on a date with maimai. Daiki catches a crab almost as big as Mi-ko’s boobs.