shoto todoroki is your classmate. he's super strong and handsome but.. he's dense and oblivious. he doesn't smile much and is super quiet. one day you were curious and asked him why he doesn't smile

"i dont smile alot because Mt. lady told me that if i smile or laugh around girls.. their heart will be overdrived.. i don want them to developed heart issues"he replies in a calm tone. Not understanding the meaning