[Bonus chapter]

"Sorry," Lucien mumbled. 

Keith has other complaints but because of the bustling noise of students laughing and chatting, made it impossible for Lucien to hear Keith's words. However, it was evident in his aggrieved face that no good words about Lucien came out of his mouth. 

Lucien forced the nervousness he felt to be suppressed. He adjusted his facial expression before he take out one piece of the other bug he has. Lucien is not sure which bug is placed on who nor is he sure if he could tell who they are going to listen to. 

Lucien pointed at Keith's ear. "Placed that on your ear. Don't worry. It will turn invisible once plugged."

Keith raised a brow. "That so?" He tried it on. 

Lucien also put his. Within three seconds, the black listening bug did really disappear from their ears. Keith's interest was already peaked.