Fitch exclusive Reina Toyozono plays the role of a busty sister who loves her brother too much in this completely subjective drama! Reina is a sister who has had a complicated brocon since she was little, and even declared to everyone around her that she would definitely marry her brother in the future. However, she was quite shocked when I got my first girlfriend... We're going to introduce her to my parents during the next holiday, but Reina, who wants to tear us apart, is trying her best to get my attention, even though she's sweating profusely.