Can someone summarize season 5 for me? I have only read the first 3-4 chapters of it

This is another persons comment but essentially it’s this
1. Taesung's grandpa got involved.
2. Things got messy.
3. Grandpa got arrested for the mess he created.
4. Taesung ran away for a few months(?).
5. Taesung came back after a few months(?).
6. They reunited and had sex.