2girls ^_^ bird blonde_hair blue_eyes brother_and_sister character_name character_profile closed_eyes dark_skin dark_skinned_male eyebrows_visible_through_hair grandmother_and_granddaughter grandmother_and_grandson grin hair_between_eyes hair_bun highres hijikata-san_(m.m) koshirae_chitose koshirae_kenji koshirae_tsurugi long_hair m.m multiple_girls original partially_translated penguin portrait relationship_graph siblings smile translation_request white_hair wrinkles