Makes logical sense, if you can accept that this is probably a not large town. Older sister got her friend into manga. She makes a business aroind manga later on.
Older sister probably exposed manga to Honami. Honami gets into it and finds a manga place in town (the manager and older sister...
Congratulations, you blackmailed yourself. Silly for me to think that she was gonna just be a normal teacher with her own private life for second there.
K, so this new stepmother really just came outta nowhere at the funeral, decided to become a mother to a high schooler, then split in 4. what the hell did his father get into? I thought that the childhood friend would at least be the straightman here, but I guess we already have fierce...