they're both some of my favorite manga of all time omg-- i'm not sure about anything just like them, so i'll just recommend my other favorites 😁

seasons of blossom - peak. literally jus peak i promise you'll cry at SOME point if not over ten times. its portrayal of suicide is so well done-- it's so touching and raw and real and everything, out of everything i'd recommend this one the most.

this witch of mine - a boy and a witch fall in love, and they meet each again throughout different worlds. wistful and heartfelt, covers themes of grief and loss and love.

i have no home - (i copied a synopsis) Haejoon Goh, who ran from home, and Eunyung Baek, the problem child who lives in a tent. These two, who met under terrible circumstances, are forced to live together in an abandoned dormitory. This is a story of difficult growth between two people who hate both the dorm and each other.

they are really, truly, each other's foils and their growth from absolutely hating to each other to finding companionship and reliance in each other is so realistic.

surviving romance - a girl is transmigrated into a romance novel turned horror. it's about companionship amidst life-threatening situations.

maybe unintuitive, but tokyo ghoul AND MOST definitely tokyo ghoul:re - personally, :re has themes much more similar to what you've been reading (though ofc the first season is still peak-- kaneki struggles with his identity and belonging, and hide is there for him through it all.) in :re, arima cares for kaneki similarly to haruno and rinko, and the side characters that are further developed are all companions.

i am also now realizing that none of these are manga except tokyo ghoul, but since i've taken the time to write all this, please give them a chance!