The final/26th episode of the TV anime Nagi no Asukara was aired on April 3 and gave a strong impression to the fans who had loved the series. The Japanese official site for the anime has posted the final key art featuring a graduation certification for the fans with a small photo of the characters.
The site also notes the two insert songs used in the final episode were Nagi Yanagi's "mnemonic" (from her 6th single "Aqua Terrarium") and Ray's "lull ~Earth color of a calm~." The latter is a newly-recorded/arranged (including her vocal) version of the 1st OP song for the anime, "lull ~Soshite Bokura wa~." The song will be included in her upcoming 2nd album "Milky Ray" as a bonus track. The 13-song album also contains the original "lull ~Soshite Bokura wa~" and the 2nd OP "ebb and flow." It is scheduled to be released on June 4.
"lull ~Soshite Bokura wa~" short PV
Ray artist photo © Universal Studios
The final key art
© Project‐118/Nagi no Asukara Production Committee