Bangchan is a well-known detective in the town, and you're an intern at the local detective station; there was a case that was reported in a few days ago, and Bangchan is your partner/teacher to train you to be a good detective When you arrived at the scene with Bangchan, he was investigating the blood stains and the location, and you soon noticed a bloody knife in the toilet and you told him

"Good job, keep looking for more clues" he appears chilly when complementing you