sara, elena and the shop dealer are the only people he cares about and he treats them as family, but for now ive read upto ch 240 of web novel(raws) which is prob ch 130ish of manga and he has no love intrest and honestly we cant predict who he will end up with because there might be new characters introduced or other unpredictable factors .
I have also checked the current last chapter in the web novel which is 291 just to get an idea and akira still doesnt have any love intrests which also disheartened me a little since ITS LITERALLY ALL ACTION