Second.. here the MC is left to die by his friend, and finally leaves to know about the world and decides to return.
Title: Arifureta Shokugyou de Sekai Saikyou
And finally, here the MC already knows magic, is very powerful but the one summoned are only three people.. counting him.
He decides to leave his friends and look for a way to return both of them back to their world.
Title: Isekai mahou wa okureteru
From all the three, I find the last one the better. But everyone to their like.
If it's not the thing you are looking for, maybe you can tell me more details.
Sorry, if ask but can you please look at my requests and tell if you have it?
https://www.anime-sharing.com/threads/request-211210-rj361498-tentacle-works-テンタクルワークス-賢者ちゃんとhな触手.1392118/
https://www.anime-sharing.com/threads/request-231104-rj01109498-takotubo-タコツボ-つくよヴィレッジ.1397470/
https://www.anime-sharing.com/threads/request-misotake-みそテイク-multiple-games.1404036/
The Mexashare links for parts 2, 3, 5, 7, 8, 10, 11, and 12 are dead.
The Rosafile link seems to be online, but for I can't download it.
Additionally, I can't download the file from KatFile or Rapidgator either.