Enough with the talk about how great or stupid the main protagonist. There must be an anime character out there who support the main protagonist especially when it's about romance. Anyone?
Teritani of I"s. That guy couldn't possibly have helped Ichitaka get laid anymore than he did outside of physically taking Ichitaka's penis and inserting it into Iori's vagina.
And he's ugly as fuck, so you ain't gotta worry too much bout him NTR'ing you.