不知水深i却凉透人心
[bù zhī shuĭ shēn i què liáng tòu rén xīn]
Literally meaning ‘unknown water depth i but heart-piercing coldness,’ this name portrays feelings of encountering insincerity or betrayals from relationships that hurt so profoundly that no depth could compare. Here, 'water depth' suggests unmeasurable emotional damage leading to deep disillusionment.