Here is the full list of all 14 Mate achievements.
Wake up from your sleep.
Lim Si-hwan went out to find Choi Kyung-jae, but what he saw was hallucinations and he followed them and eventually became missing.
All of Lim Si-hwan's actions became known, and in the end he had to go for a Judgment.
Lim Si-hwan reminisced about his past and reflected deeply and acknowledged his mistake by giving Choi Kyung-jae a sincere apology.
Lim Si-hwan recalled his past and reflected deeply and apologized to Choi Kyung-jae with sincere apologies, It was hallucination.
Tried too many times to go the wrong way.
In the tutorial, scored the ball into the goal post.
Find an unrealistic chrysanthemum flower.
Hit every bell in the school at least once.
Get out of school without turning on the fluorescent light once.
Escape from the academy with your bag full of items.
Your Bag was never full until escaped from the academy.
Escape from the academy in 600 seconds.
Run away from him for 240 seconds straight.