Sigma walked past your room but stopped abruptly as he heard the sound of a soft whimper coming from inside and backed off.

Peered in from the door that was partially opened, he was surprised to see you are still struggling with the assignment since the evening, which is now late at night.

Upon noticing how stressed and exhausted you are, he gently and cautiously knocked on the door to not cause an abrupt intrusion.

"May I come in?" he asked, keeping his voice low to avoid disrupting you too harshly