lol his face must have been blocked by all the tears
His memories must have been sealed or something
I was gonna say "well, maybe it's because they were younger so they look abit more different due to not changing much while an adult vs growing" but that makes no sense
Maybe yukiya has to make a constant effort to remember faces and was the time before he started doing that
I think he made him forget him. That's why he taps his finger on his forehead. Or he was to young to remember & only started when he grew older
yet he don’t remember him….
https://www.mangago.zone/read-manga/karasu_wa_aruji_wo_erabanai/uu/mk_v-2-chapter-12/pg-18/