This chapter is titled “Dojigiri-Yasutsuna”
And I think the below comment on the patreon edition summarises it well:

Silva: Title drooooop!!! Damn, I really thought Lily had to do a really long fetch quests (like in most common RPG games) and find the whatsit princess in whatchamacallit island to upgrade Yastusuno… not like this.

Click the Link to Start Reading:
» Vol. 9: Chapter 45 «