Answer:
日+四+又 NICHI, JITSU, hi, ka - sun, day / SHI, yo(tsu), yo(ttsu), yo, yon - four / mata - again, also, moreover
ト+日+又 Katakana "To" or The "Boku" radical - oracle / NICHI, JITSU, hi, ka - sun, day / mata - again, also, moreover
雷 RAI, kaminari - thunder
完 KAN - completion
E+ヨ+｜+｜+メ+メ+冖 Alphabet "E" / Katakana "Yo" or The "Keigashira" radical - pig’s head / The "Tatebou" radical - vertical stroke / Katakana "Me" / The "Wakanmuri" radical - cover, crown
They all take the "fish" radical (魚 GYO, sakana, uo - fish) to become other characters.
鰻 unagi - eel
鰒 awabi - abalone
鱩 hatahata - sandfish
鯇 ame - grass carp
鱟 kabutokani - horseshoe crab