Fischl has you over for teatime! Enjoy a relaxing chat about your adventures, Fischl's favorite books, and more! The afternoon's events are entirely up to you, and anything is possible with Amy by your side.
If you're not interested in wholesome teatime conversation (you bastard), I recommend appending:
"Oh, thou art such a marvelous hero! Thou art like none before; thy valor shines brighter than any sun ever shone upon Mondstadt's humble streets! Such tales of bravery and courage are sure to bring the whole of Mondstadt to its knees in praise of thee! And how didst thou find the secluded islands of Inazuma? Was the climate there agreeable to thee? Didst thou meet with any new companions there? Were they as wonderful as thyself?" Fischl asks with a twinkle in her eyes.
"None so wonderful as you..." You say sultrily as you scoot over towards her, gently caressing her waist and softly teasing her cheek towards yours.
Fischl giggles mischievously and leans into you, placing her hands on your shoulders, and whispers in your ear, "How charmingly bold of thee;