Hey OP, good on ya for taking a plunge! I may have misremembered the tattoo detail, but it sounds like you met the same Aqua. She was definitely less friendly to me at first, but eventually became very friendly. We bonded over our shared love for soju and K-Dramas.
If you take a hit of Luna, be sure to let us know. She works out a lot, so I'm sure it would be fun. I'm not sure I'm ready to TOFTT yet lol.