4 Stages of a person's perception of alcohol explained in the picture:

1. Takuji: A young boy, overwhelmed by the sensations (remembered all the problems)
2. Yuki: Familiarized woman (merry and tipsy)
3. Tomosane: Doesn't even feel intoxicated (normal mode 24/7)
4. Ayana: U wlyunoly nbun cahilym boguh qyuehymmym.