Marcipan's Things

I think it’s this oneshot. https://www.mangago.me/recommend-manga/kimi_no_naka_ni/ It’s part of an anthology and it’s really tragic and heart wrenching.   1 reply

This one? https://www.mangago.me/read-manga/murim_login/   reply

I think you mean this one https://www.mangago.me/read-manga/highschool_boys_trapped_in_a_fantasy_world/ It has:High school boys, going to a different world in a dream, MC encountering a slime early on (though it didn’t melt his clothes xD), warrior ML If I remember it correctly it’s on webtoon, so it’s better to read it there to support the ......   1 reply

Okay, I haven’t read this one yet, so I can’t say anything about it’s quality, but this is the closest I could find to what you’re looking for   2 reply