A Gal’S Guide To Budget Living For An OtakuOtaku ni Otoku na Gal Gurashi ; オタクにオトクなギャルぐらし ; 宅男辣妹勤俭同居记

Yutaka Kongouji is the son of a wealthy family, but also an introvert and an otaku. He lives only to spend all his allowance supporting his favorite idol. But when his parents' business fails, he has to move into a run-down apartment on his own. There he ran into Rino Hyuga, a popular gal in his class?