ok, in case anyone is curious, the sisters have seasons themed names :
Spring: Koharu - 心春 - literally heart+spring (translated as Kokoharu in this chapter, but Japanese sources gave the reading as Koharu こはる)
Summer: Manatsu - 真夏 - literally true+summer
Autumn: Akira - 秋楽 - literally...
I couldn't find the exact reference photo from google images, but the football (soccer for you yanks) player is from the Uruguay national team, specifically, the 2022 World Cup match vs Ghana:
Sasumata - "primarily designed to restrain or pin a suspect against the ground or wall"
"In the aftermath of the 2001 Ikeda Elementary School massacre in Osaka, many Japanese schools sought practical, non-lethal means of defense against intruders. Modern sasumata, typically made of aluminum and...
In case anyone is wondering
Their names are themed around the four seasons:
Haru 春 = spring (although the actual kanji used 晴 is different, it's a homophone)
Natsu 夏 = summer
Aki 秋 = autumn
Fuyu 冬 = winter
Erm, am I the only one to think she's nuts for casting freakin' METEOR STORM in response to trying to start a fire? a big-ass wide-area AOE spell. what is she trying to do, level the entire island?
Don't think anyone has posted this yet, but here's their themed names in Japanese:
Ichika 一花 (lit. one flower)
Nitori 二鳥 (two bird)
Mifu 三風 (three wind)
Shizuki 四月 (four moon)
Their surname Miyabi 宮美 can be interpreted as "palace beauties"
edit: ah, the scanlator explained their names in...
"Meshi" translates to "rice" (cooked). which makes a lot of sense as Ikameshi is squid stuffed with rice.
Meshi doesn't actually translate to delicious. "Delicious in Dungeon" took a few artistic liberties with the title translation - Dungeon Meshi more properly translates to "Dungeon Meals"