Childhood friends Best friends to lovers

#grew up together - master x vassal
p. 65: interconnected stories, 3rd couple
it's first out of convenience to 'date' for his safety. seme has served the uke's family for generations.
they ended together.

#old classmates
#reencounter after 8 years (seme already like him that time)
They have the relationship of bully and victim the whole duration of high school. Now that he's a teacher, his nightmare of a classmate ended up becoming his neighbor. Despite the hate, it was all cleared up.
A happy ending for them

#old classmates
seme's funny way of expressing attraction. who would suspect?
#separated in elementary but reunited in high school after 6 years
elementary-level kind of attraction. they were separated but got reunited twice but both are still immature as ever so the bickering is funny and cute

#love at first sight 10 years ago
p. 109 - 136: the small and pretty girl he's liked when they were kids turned out to be a boy and he still likes him till now. then the other guy caught him using his uniform to masturbate...

#re-encountered, now in their 20s.
p. 143-170: very cute story of a bi-racial kid whose previously been bullied in elementary incidentally met friend who always defends him then but now the childhood friend says he's a bother? *giggles.

childhood friends
seme's secret love for (at least) more than a decade
#younger seme, always catching up to uke.
#friendly rivalry
he's always been inlove with the other guy and he did everything to make masatsugu turn his attention to him... including masking his feelings and competing with the guy as rivals in love games.

childhood friends, two couples.
grew up in the countryside, went to metropolis to work
reeencounter after 4 yrs.
years after, he began requestioning his aims and suddenly met his friend again.
@chap. 3, their other friend's story of how they hook up.
cute friends to lovers. seeing your childhood friend in a different light.

#childhood friends
seme started getting attracted when he got into middle school
uke younger by 4 years
ch. 3-5: Fluffy story in the perspective of a college dude trying to hide his feelings from his really young childhood friend
First love and a first time that is sweet and not rushed, a rarity among BL

childhood friends, long-time classmates
straight childhood friend < uke < old classmate
#secret one-sided love, love triangle
#friendship
the (straight) common friend that they had since they were kids is the one that toshiyuki likes. he's tired of this one-sided feeling and then his other childhood friend asked him out.

Ch.5 onwards. Appeared in the earlier chapters as side characters. Childhood friend problems about destroying your friendship if you confess. Manly seme x melancholic and beautiful uke

chapter 3 p. 1: acquainted with each other since young bec. for the sake of their family business. but for him, it's more than that
chapter 3 p. 37: they knew each other since young and small-time gang leader keeps denying what's between him and his childhood friend