Yui, a girl who loves panties who gets wrapped up in battles using powerful underwear. Yui receives special striped underpants that give her powers. (Source: Anime News Network)

The fabulously wealthy heir to the Tsuwabuki Concern, Ichiro Tsuwabuki, has arrived inside the next generation virtual reality MMO, Narrow Fantasy Online. His cousin Asuha has asked for his help in finding someone inside the game, and he's come to help her out. Of course, while he's happy enough to help his cousin out, Ichiro also cannot be satisfied with anything but total mastery of whatever he tries. He quickly proceeds to dominate the game world using his natural genius... and his wallet! (Source: J-Novel Club)

Ichiro Ishibuki, the heir to the Tsuwabuki Concern, is incredibly wealthy. When his cousin, Asuha Ishibuki, asks him to help her find someone in the game, he descends upon the world of the next-generation VRMMO, "Narrow Fantasy Online." However, Ichiro is not satisfied until he reaches the top in everything, so he uses his talent and wealth to become unrivaled in the game world! (Source: Firecross, translated)