Girl becomes obsessed with a game her ex introduced her to. after breaking up with her ex, she attends a game convention & runs into her ex. There she lies that a stranger is her new boyfriend after seeing her ex with his new girlfriend. The guy that pretends to be her boyfriend is actually a famous game streamer. She ends up running into him a few times after that thru the game and irl. Slowly they become friends and eventually more. Older girl x younger guy. Super cute and wholesome. Honestly an OTP and relationship goals atm
Yamada-kun to Lv999 no Koi wo Suru