Our Cheating Story: The Experienced You Cheats with an Experienced Someone Else?
The person who called Ryuto to the gym at night was actually Maria. She confesses her desperation to become Ryuto's first, even if that means dressing and acting like Runa. Ryuto is shocked. As the two talk it out, someone else watches from the shadows.
Aired 10/11/2023EP 6 - Our Cheating Story: The Experienced You Cheats with an Experienced Someone Else?

2023
Our Dating Story: The Experienced You and The Inexperienced Me
Ryuuto Kashima is the school’s gloomy introvert, and he’s got a crush on Runa Shirakawa, the popular girl. After losing a bet to classmates, he confesses his feelings to Runa one day. Shocked and secretly just as inexperienced as Ryuuto, Runa agrees to date him. The relationship grows between two people who are as similar as they are different. Will their young love blossom? Time will tell!
(Source: Crunchyroll)