Kimi ni Todoke Special ～Soulmate～

Synopsis

After graduating high school, Kurumi and Sawako enter the same course in university. Kurumi invites Sawako to a mixer that she wasn't interested in, but they end up meeting some strange men... The one who appeared in the nick of time to save them was "Big Brother Eiji." It turns out he is Sawako's cousin... (Source: Shueisha, translated)