seme male oc is the son of karlheinze and a powerful slut he dated before he got married she got pregnant and gave birth to ALLEN WALKER (seme male oc's name) karlheinze's first son (named after himself by picking letters and arranging it in order) and favourite the other son have met him but forgot except kino the "first son" because Allen was the only other person he could talk to except when his father is telling him and Allen his plan to create fake experiment on his other children because Allen convinced him not to use his real other children in the bed room he was young so he did not know what that ment at the time because he was still innocent Disclaimer i dont own diabolik lovers, vampire knight, dance with the devils and black butler only my ocs