Six strangers gather in a house in Karuizawa. Aged 19 to 31, they've got one thing in common: they'll be living together in a beautiful town.
As everyone settles in, Yuudai shows off his cooking skills. When some members go out to lunch, he seems to hit it off with one girl in particular.
In the midst of discussing their dreams for the future, Shion gives Ami some advice. Then a group visits Tsubasa's father's restaurant.
Yuudai wants to be independent, but he's struggling. Later, Ami starts crying when Yuudai asks her bluntly what she wants to do with her life.
Mizuki grows increasingly skeptical of Yuudai, who keeps buying things using his father's credit card. Tsubasa and Shion head to Kusatsu Onsen.
Yuudai vows to make changes and finds a restaurant to work at, while Ami makes some career decisions. The two of them go on a date in Karuizawa.
Ami and Yuudai both dissect their date with the other members. Yuudai is taken aback by Ami's attitude towards him the next day.
Mizuki spends the night in Tokyo with her old boyfriend. Shut out by Ami, Yuudai reconnects with an old girlfriend too, while Takayuki tries to help.
Tsubasa and Shion visit a temple for good luck before her team's big game. Meanwhile, Mizuki makes a decision, and Yuudai cooks for a house party.
Takayuki takes Ami to a breathtaking cafe, while Tsubasa's confidence takes a hit after hearing about Shion's ex. On Christmas, new members arrive.
Seina and Takayuki take a stroll in Kyu-Karuizawa. When Ami hears about it, she invites Takayuki snowboarding. Then Shion and Tsubasa go ice-skating.
When Ami and Takayuki go snowboarding, she tells him something very intriguing. Shion answers a question about Tsubasa, and then it's New Year's.
Some of the members go snowboarding, but Ami and Takayuki only have eyes for each other. Tsubasa goes to Tokyo to buy Shion a birthday present.
The members throw a birthday party for Ami and Shion, and Takayuki surprises everyone by shaving his mustache. Tsubasa gives Shion his gift privately.
Shohei and Ami go out together, but there isn't really a spark. In the face of Ami's cold attitude, Takayuki starts to regrow his mustache.
Takayuki tells Seina and Shohei that he no longer has feelings for Ami, but Shohei's feelings for her have grown. Ami, meanwhile, makes a choice.
Yui keeps trying to patch things up with Mayu. Shohei prepares for an album release show in Shibuya, then asks Yui for some local tips.
Mayu and Noah go on a hike, and when they get back, Mayu has an honest talk with Yui and makes a decision. A new member joins Terrace House.
New member Aya settles into the house, and the members make plans to go camping together. Seina responds surprisingly to Shohei's bold moves.
Aya and Takayuki head out on a date together. Meanwhile, after a surprising conversation with Shohei, Noah hangs out with Yui once again.
Yui talks to Shohei about Noah, and then tells Noah off the next day. Shohei makes plans to ask Seina to date him, and Aya asks Shohei for a favor.
After hearing from Shohei, Noah asks Seina out on a date. During Takayuki's birthday party, Aya talks with him one on one.
Aya and Yui grow suspicious about Seina and Noah, and Yui tries to interrogate Seina about it. Shohei prepares an event for the other members.
Takayuki gives Aya a gift before he takes her skateboarding. Noah and Seina go on an extremely consequential date, and then a new member arrives.
Just before Ami's scheduled departure, Shohei meets her at the station for a surprise trip to the slopes -- and he's got a plan. A new member arrives.
It's Valentine's Day, and Tsubasa is about to head to Nagoya for the national championships. Shion has something to tell her before she goes.
With the tournament over, Tsubasa has time to think about her next steps -- including her reply to Shion. Shohei heads into the recording studio.
Tsubasa gives Shion her answer. On a snowy day, Mayu and Takayuki talk about love, while Shohei and Seina continue spending time together.
Seina returns from a trip to Korea looking somewhat different. Takayuki and Mayu go out to eat, and Tsubasa makes another decision.
Two new members arrive: aspiring pilot Noah and Karuizawa native, Yui. Almost immediately, Noah and Mayu head out on a date.
Takayuki takes Noah to the yakitori place. Mayu really likes Noah, and she gets nervous when he and Yui plan to spend time together.
Shohei takes Seina out on a birthday dinner. Awkwardness reigns when Mayu's time with Noah goes nowhere. Noah and Yui go on their planned outing.
As Noah and Seina spend a day together, Shunsuke talks about bisexuality with the other members. Takayuki tells Aya a secret.
On the morning of Seina and Noah's departure, Takayuki shares a decision with the other members, then travels to Tokyo. Some familiar faces return.
Three new members join the House: skateboarder Kaito, student Maya, and company employee Sota. The next day, Yui and Kaito go grocery shopping.
Maya and Kaito go out to a soba shop to try the Karuizawa specialty. Yui and Kaito make plans to go to a skate park so she can learn to skateboard.
Aya has a heart-to-heart about her future with Yui. After Sota and Shunsuke spend a day hanging out together, Shunsuke comes to a decision.
After a farewell breakfast, the members welcome two newcomers: model Risako and ex-soccer player Aio. Then they plan a birthday party for Kaito.
Yui gets job-hunting tips from Sota before he and Risako go out to lunch. At the beach to see Kaito skateboard, the members meet a Hawaii alumnus.
Kaito and Yui head to Matsumoto to see Shohei in concert. Aio asks Risako out on another date, as does Sota, while Kaito and Maya go to an art exhibit.
Risako visits a lava field with Aio but cancels on a date with Sota. After a beer factory tour, Sota asks Maya on another date, but she refuses.
Sota comes to a decision and informs the other housemates. Aio reneges on his invitation to Risako so he can ask Yui on a date to a soccer match.
Masao learns that he snores and Aio and Yui go fishing. The night before Maya's college fashion show, Yui and Risako talk to her about her behavior.
With his feelings growing for Risako, Masao decides to make lunch for her. Kaito and Maya go ice skating, then spend more time together that night.
While out to a bar together, Aio tells Yui his feelings. While Risako is away for work, Maya and Yui discuss their thoughts on her behavior.
Masao tries to comfort Risako, who’s still at odds with the girls. Later, Aio tells Risako the truth about his relationship with Yui.
Risako makes it clear that she knows how far Yui went with Aio. After going on a glassblowing date, Masao tells Risako his feelings.
Masao asks Risako to give him her response at his band's Christmas concert in Fukuoka, but first she talks to his notorious bandmate, Enon Kawatani.
As previous members celebrate the holidays, Yui's birthday approaches in Karuizawa. Meanwhile, Risako travels to Fukuoka for Masao's show.