ZDC SAO RE HF ソードアート・オンライン －ホロウ・フラグメント－ PC Part 67 No Queen Bow Arcana Sword Skill Get Check, Sinon Bow Upgrade Gift and Hollow Area Bow Event Start WithS Shortcuts End and Post HABEGlitch

Best you don't give Sinon a Pow before finishing this event as when you do the bow you gifted to her before completing this disappears. Thankfully the boy you get here is Tradable, unlike Lisbeth's Lingering Hear 1H Sword which can be traded and therefore duplicated in Multi-Player Online.