So many haters on her but she's on the same level or probably based from Yui Kotegawa of "To Love-ru".
And don't forget Yui was the most popular female characters of that series in one of their character polls. So don't count her out yet! She's probably popular in Japan. TSUNDERE RULES! XD
If those 2 overpowered the old man, I think I'm gonna drop this. It's understandable for Lady Inari to overpower the others but these 2 that the MC defeated already then becomes OP when they seriously team up not by fusion but by just giving a tool to the dumb one. F*ck the time chamber then...