I was misreading "macchari" as a slur of "massari" (which has no real meaning, so I had to kludge it together) rather than a slur of "mattari" ("mellow" or "laid-back").
Marisa: "Yuu ♪ Yun yu-n~... Phew! ☆"
She's... drunk? Getting drunk, even though she's just a manjuu...?
Ah... maybe she's a sake-manjuu?
Marisa: "Eajy! Eajy!! Eajy!!!"
Did she really recover so quickly with just one treatment? But getting drunk...
Well, anyway, I guess I'll try asking her how she's doing.
Marisa: "Ea-jy day~♪ Mwel-low day~♪"
*wobble wobble*
"Ah! Marisa, it's dangerous over there-!"