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Twins ch 2,6
Adoptive brother
Adoption (father, waited for him to grow up, fall in love when he was a lil child)
Ch 4: father x stepson (son of his 2nd wife) rape
Ch 4: stepbrothers - forced bj
Seme used to me married of ukes sister
(Uke is younger brother of semi's ex wife )
Ch 1-3
Brother
Only ch 3 , rape
Ch 2.4 - родные братья (после смерти родителей)
Half brothers
Half Brothers + ch 2 his uncles tries to rape him (failed
Soukyoku (MEGU Iroha)