BUR #10280 has been approved by @Hillside_Moose.
create alias kourin -> morichika_rinnosuke
Similar to how orin -> kaenbyou_rin and okuu -> reiuji_utsuho, except this one is actually an official nickname
fairly popular one too
https://danbooru.donmai.us/notes?commit=Search&search%5Bbody_matches%5D=kourin&search%5Bgroup_by%5D=note