Umehara FIGHTING GAMERS!

"The story explores the real-life events that built the fighting game community, and the strategies and play styles developed by Daigo and his fellow gamers. In Volume 1, Shinya Ohnuki, a gamer with prodigious talent, is drawn into the wild and wonderful world of fighting games after a chance meeting with Daigo. As they face off in iconic games like Street Fighter II, Street Fighter Alpha, and Darkstalkers, an enduring rivalry between Daigo and ""Nuki"" is born!" (Source: Mangamonster.net)