The power within US

Same old routine every day? Your jaw is stiff due that you didn't smile in ages? Want to have some fantasy in your life? So... Are you prepared to assume the consequences?! Seinaru is a 17 years old boy. No clear passion in his life. Not having friends. A shut-in afraid of people. By pure luck, he will discover a world full of mysteries, one that is embedded in our own life. However he will soon learn that his world has the same problems that his original one. A wish transformed into a tragedy, wouldn't it be better if it's life stayed the same? The change was necessary? .... I don't have the answer, but you may have it. A human tale in a fantasy world, what could go wrong.