Manga by author Insane

Young Hoon, a nerd guy who always fail in love. He have problem in understanding woman's feeling, that's what make him always getting dumped by his girlfriend. But one day a mystery guy appear and give him a special glasses, the glasses that will change his life forever.

From the live action series with the same name, Vanguard, has been renewed. It features a girl named Lei Xiaoyu that has caught the attention of a mysterious assassination organization! The tsundere Wu Yue of the Vanguard was assigned to be Xiaoyu's protector. A love story full of youth, campus life, and action?! As the plot was revealed layer upon layer, the brutal truth gradually appeared...