Precise System

Killed by his own Family.
Reincarnation gives him another chance at life but why should he spend it on revenge.
Ken to Leon.
'Ken is dead and I am Leon now. I don't want revenge. I lived my past life training since I could remember, now I want to live a life in order to enjoy this life and damn everything else'
Unfortunately fate has other ideas on ways for him to live this new life.
Harem? yeah
System? definitely
School life? sure
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This is my first story and I welcome all criticisms. Stay tuned