I Can Summon Myself from Parallel Worlds

Mao Changshou was an utterly ordinary high school student, until his own self from fifty years in the future suddenly appeared in his life and set his life on a new course. He had only ever hoped for a peaceful, comfortable existence, but after repeatedly summoning versions of himself from parallel worlds, he began to uncover astonishing truths hidden beneath the ordinary world. Yet as the weight of knowledge and truth continues to build, can he hold fast to his original ideals without being shaken by the turmoil around him?