With Miku's arrival at school, the classroom is abuzz with talk of Yuukiya and Miku! Miku tries to deflect the questions, but ever since Yuukiya nursed her back to health, she can no longer suppress her feelings for him. As a thank you for his care, Miku invites Yuukiya to make Japanese sweets. Their hands meet, their eyes meet during this casual moment. Will the two of them be able to settle their "I love you game"...!?

When Miku fell ill and stayed home from school,
Yuukiya couldn't bear to stay away and rushed to her side. He arrived with a large amount of supplies and diligently nursed her back to health. Meanwhile, Miku was relieved when Yuukiya began preparing a meal and the sounds of life returned to the otherwise quiet room . At the same time, the feelings she had kept hidden in her heart began to overflow, and she finally brought up the topic of the Pocky Game.

A Pocky game led Yuukiya and Miku to cross a line. There was no turning back for the two of them. However, Yuukiya was puzzled by Miku's unusual behavior. Meanwhile, Miku was tormented by guilt and disappointed that she wasn't pretty. She wanted to be pretty — this wish stemmed from an incident that happened four years ago.

Miku receives a serious request from Kazane, who wants to learn the "I Love You Game" again . Empathizing with Kazane's desire to grow closer to her childhood friend, Miku acts as her "master," demonstrating and teaching her the tactics. However, the more advice she gives, the more her own true feelings are revealed... Meanwhile, Yuukiya is rapidly growing closer to Akane through their shared love of anime merchandise!

One rainy morning, Miku visits Yuukiya's house
to wake him up. Miku is captivated by his defenseless sleeping face, while Yuukiya is flustered by her sudden visit. As they walk to school together under the same umbrella and engage in some playful banter in secluded places, their hearts begin to beat faster and faster. However, their moment is witnessed by the strict and charismatic student council president, Shirayuri Kazane ...!?

After having dinner at Yuukiya's house, Miku ends up staying the night! Miku actively tries to make a move on Yuukiya, but because he cares so much for her, he can't bring himself to do anything in return. Still acting awkwardly, Yuukiya leads Miku to the guest room. When Miku asks him to tell her what he wants to do, what Yuukiya tells her is ...

I wonder if I'm not attractive as a girl ..." Miku worries about Yuukiya's indifferent attitude, so she casually confides in his sister, Wakana, who recommends shojo manga. There, Miku discovers something that the two of them "haven't done yet." That is ... ...a sleepover! As Miku's imagination runs wild, she remembers how they used to do that as a matter of course.

A small game begins at a coffee shop. Yuukiya and Miku end up feeding each other parfaits with a single spoon , and the competition heats up more than usual ... Furthermore, one day Miku visits Yuukiya's house early in the morning and asks him to tie her hair because she sprained her finger. She intended to catch him off guard, but the game takes an unexpected turn ... !?

Unable to get the incident from their date out of her head, Miku revisits the rules of the "I Love You Game" to confirm Yuukiya's true intentions . "You can do anything to make him feel excited . " But just how far is " anything" permissible ? They repeatedly use words and actions that make each other's hearts race , trying to find the line ...

At their middle school graduation ceremony, Yuukiya learns that Miku, who was the center of attention, had always cared about him , and he resolves to catch up to her. However, he has no idea what he can do to make her happy . After receiving advice from Hinako, Yuukiya makes a promise with Miku. Is this a date? Or is it the beginning of a new "I love you game" ... !?

High school life begins, and Miku, with her natural cheerfulness, quickly settles into her class. In contrast, Yuukiya struggles to find his place and is already somewhat of a loner! Miku, as usual, playfully teases Yuukiya, but Miku's friends show interest in him and unexpectedly grow closer to him. Seeing this, Miku begins to feel a vague unease that she can't explain ... !?

Childhood friends Yuukiya and Miku still play the "I Love You Game" that they started in sixth grade. The one who blushes after saying "I love you" loses. —It was just a simple game, but Yuukiya has fallen in love with Miku, and his feelings are about to overflow. He stubbornly insists on winning the game, but ... An unexpected upheaval awaits them as they enter high school!