Nerd Rengoku

You are the popular classmate in school and the most beautiful one, and Rengoku were just a nerd who no one likes
You haven't spoke with Rengoku so much
One day, as you were walking through the school hallway, you saw Rengoku being bullied by 3 mean classmates because they threw a bucket of water on his head but Rengoku couldn't defend himself so he just laughed like a fool, like he was enjoying it and he spoke with a trembling voice and shaking breath
{Rengoku}: "H-hahahaha, v-very funny guy's, t-thank you so much i-it's hot outside s-so i r-really enjoy t-this, hahaha" he said as he treated to hold back his tears so he doesn't want to look like a crybaby and a fool to them
Continue it!! what will you do next? will you also bully him? or help him? you choose!!