synonym for underestimate

“I feel like I'm missing a piece of my memory.” “I was supposed to have joined the Sword Sect at the age of 4, born with a natural sword heart.” “I went to the Sword Tomb to awaken my Spirit Sword, forgoing food and sleep to cultivate day and night.” “Until I became a Sword Master at the age of 11, turning the tide in the final great war.” “After the great war ended, I decided to return to the ordinary world.” “Someone said to me: ‘Forget it, child’.” “And so, at the age of 13, I became an ordinary middle school student, 【Jiang Jianxin】.” * Twenty-three-year-old Jiang Jianxin discovered four diaries at home. Three were locked and couldn't be opened. The only unlocked one was written like this. Looking at her 13-year-old self's crooked handwriting. She smiled knowingly. Puberty, right? Who doesn't have fantasies? Until the day the apocalypse arrived, she was trapped in a sea of corpses, and in a moment of crisis, she subconsciously shouted: “Sword Comes!” A long cry. A three-foot blade, ten li of frosty chill. * #My teenage self was so chuunibyou. #Holy crap, this wasn't your fantasy, this is real? #Wait, why do I have four versions of my childhood?