The video is in Spanish but just follow the steps or the path of the player and I hope you make it.
If it works for you, let me know and if it doesn't, play with fear of being caught :(
lol i just ran when the guard come out from vent , get the card and chiku cant get me so its not that scary
TRUE. Chiku takes a long time to leave and while the guard is already at the end XD
but when i start to figure when i am not watching youtuers , its fucking scary and hard (the chiku can crawl throgh vent)