mediums for time travel being electronic devices (old mp3, old phone). FLs have regret about career & love decisions. 1 develops love for a previously obscure person, & the other reunites w/ an old friend.

Recommending this just because they share the same boisterous and obnoxious laugh. These shows do not have anything in common at all but that (exp for the -spoiler- plot line).

Both of the MLs are seeking 'revenge', with the FLs being clueless about who they were until like the last 6-7 episodes.

Both plots center around being inside a game. Their skills, talents etc are greatly utilized (to the point where it was getting a bit annoying).

The premise of both surround sketchy people coming to a new highschool. They also try to fix the 'inner school' issues.

They have the same premise, with both FL's turning back into their younger selves and getting a second chance at life.