My Love Mix-Up!
消えた初恋 (original)
Aoki has a crush on Hashimoto, the girl in the seat next to him in class. But he despairs when he borrows her eraser and sees she’s written the name of another boy—Ida—on it. To make matters more confusing, Ida sees Aoki holding that very eraser and thinks Aoki has a crush on him!
Starring Shunsuke Michieda, Ren Meguro, Riko Fukumoto, Jin Suzuki, Seiichi Tanabe, Ayumu Mochizuki, Zinpei Watanabe, Kosuke Hasebe, Rena Hirata, Moene Usui
Watch "My Love Mix-Up!" on Rakuten Viki released in 2021. It's a drama and comedy show, and has a rating of 8 out of 10 from Imdb which is usually fine for this kind of show, and is currently available to watch for free.