To answer the source request, Sanada Momen from Raimuiro Senkitan? The character design looks familiar from what I've seen here, but I haven't seen the series.

EB said:
To answer the source request, Sanada Momen from Raimuiro Senkitan? The character design looks familiar from what I've seen here, but I haven't seen the series.

you are correct.

Why did she not notice him before?

My question is, why was he trying get out from under her? O-o

Mythterious said:
My question is, why was he trying get out from under her? O-o

He couldn't breath, probably