Artist's commentary
Hang in There, Kogasa-san 3173
The parts themselves are 1 yen for one thing or 60 yen or 100 yen, so I feel paying close to 1000 yen for the train to go buy them is too much.
Ordering them would be easier, but waiting for days for it to arrive is frustrating! (lol)
And anyway, I keep adding necessary circuits as I'm making it, so I clearly don't have the skill to understand what parts I need(^^;)
I contemplated about drawing that minute episode, but it was so technical that I thought I might draw it separately as a book. I might not make that book (lol)