The tag alias #57378 sasizume -> petaroh has been rejected.

Reason: Same artist, ditto for ueno_petarou. They have many different handles on multiple sites. Their artist pages provide a more complete picture.

EDIT: The tag alias sasizume -> petaroh (forum #333145) has been rejected by @slyroon.

It looks as if the sources of Petaroh's and Ueno Patarou's pictures are lost. According to the petaroh wiki, they were likely purged, they are also known as Petaroh Ueno (so a likely connection with ueno_petarou), and the artist's current online handle is Soutaro Sasizume. So, if any of this can be confirmed, we arguably should unalias okatimati from sasizume, then alias okatimati, sasizume, petaroh, and ueno_patarou to soutaro_sasizume (or sasizume_soutaro, depending on which is the surname; Kurogi, where are you?). In this case, we can't really blame OneMoreAnonymous for their lack of sourcing as, if there are any off-site sources left, they're not easy to find, at least with my paltry level of poking about.

The tag alias sasizume -> petaroh (forum #333145) has been rejected by @slyroon.