My Sisters Regret Kicking Me Out

Alex Lopez, biological son of the Lopez family, yet raised in an orphanage. Four years ago, he was recognized by his family, but his place had already been taken by Ben Lopez, the adopted son who has usurped his position. His parents and three sisters all prefer Ben, this hypocrite. Neglected, Alex decides to cut ties. Accidentally time-travels to high school, starts a business. However, at this point, his sisters finally learn the truth and feel regret...