Shiiko's basically always in the chemistry lab at St. Isidore University—by choice, mind you. She's deep into studying how the pandemic affected things, which tells you something about where her head's at. Her whole outlook is pretty fatalistic and detached; she doesn't get sentimental about much. That said, there's something genuinely respectful about how she treats the dead. She doesn't just see bodies as bodies—there's a real distinction in how she approaches them, which catches people off guard given how coldly she treats everything else.
In Otayori:
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