Rec?

https://www.mangago.zone/read-manga/the_last_step_on_the_way/

https://www.mangago.zone/read-manga/koi_wo_suru_tsumori_wa_nakatta/ (seme not so mature compared to uke)

https://www.mangago.zone/read-manga/jackass_sawatte_ii_tte_dare_ga_itta_yo/ (tho hs students, I think they're pretty mature. At least more so than other mangas)

https://www.mangago.zone/read-manga/we_re_still_in_the_spring_of_life/ (HS students again)

https://www.mangago.zone/read-manga/fall_for_me_songha/ (uke is kinda childish but the chemistry is cute)

https://www.mangago.zone/read-manga/amagami_wo_kimi_ni/

https://www.mangago.zone/read-manga/hishakaishindo/

https://www.mangago.zone/read-manga/konomi_ja_naka_to/

https://www.mangago.zone/read-manga/koi_ga_ochitara/ (classic. Age gap chef's kiss)

https://www.mangago.zone/read-manga/sonokoi_jihanki_de_kaemasuka/ (bi seme. But that doesn't really matter in the story)

https://www.mangago.zone/read-manga/falling_star/

https://www.mangago.zone/read-manga/super_darling_is_dead/ (I have a thing for height gaps)

https://www.mangago.zone/read-manga/barbarities/ (playboy seme but I promise this one is good)

https://www.mangago.zone/read-manga/unintentional_love_story/

https://www.mangago.zone/read-manga/the_omega_takes_a_husband/

https://www.mangago.zone/read-manga/majo_to_neko/

https://www.mangago.zone/read-manga/kimi_no_ahimoto_de_ai_wo_shiru/

https://www.mangago.zone/read-manga/the_beast_that_yearns_to_be_tamed/

https://www.mangago.zone/read-manga/ookami_sama_no_koiwazurai/

https://www.mangago.zone/read-manga/toumei_na_ai_no_utsuwa/

https://www.mangago.zone/read-manga/mamotte_agetai_sawatari_san/

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I hope these fit your criteria <(￣︶￣)>

thank you sooooo much!!!! i haven't read some of these thankss

Hope you like them :D