recorded "Junk", a song written by her longtime friend, Princess Princess vocalist Kaori Kishitani. Kudo tells Yahoo that Kishitani presented her with four different songs and let her pick her favorite. Kishitani then asked her what kind of lyrics she had in mind for the track she picked, to which Kudo replied she wanted the song's message to be about "down-to-earth living". Kishitani created an assertive anthem that Kudo was thrilled to record, stating: "you can't behave like I do on this song in real life." Kudo worked with guitarist and longtime collaborator Taisuke Sawachika on the song "Dōse Nara". She refers to the song as one of the album's "standout" tracks; according to Kudo, she was drawn to the song because of its "cool factor". She singled out the opening line of the first chorus Sawachika wrote, and the "mouthful" of lyrics she sings throughout the song, as its most impressive aspects. "Hotori", co-written by Gorō Matsui and Koji Tamaki, came about because Kudo specifically requested the two collaborate on a song together. She explained to Yahoo: "I was curious to find out what [Tamaki]'s songs would sound like sung by a woman." Kudo wanted the song to evoke a sensation of floating and was pleased that Matsui's sparse lyrics didn't include any situating details. Kudo wrote the lyrics for "Hagane no Mori", one of the more pop-sounding tracks of the record, with the intention of creating a fight song for herself and her fans. The song is about seeing the light at the end of the tunnel when the world seems bleak. She further explained to Yahoo: "I wanted to sing from a hopeful point of view and to let the listener know that, when you feel like you're struggling to move in a bottomless pit of mud, you don't have to sink in the dark, but you can instead move towards the future ahead." Kudo admits even she got teary-eyed writing the song. The song was composed by Kudo's 14-year-old daughter, Kōki. She also worked on the nostalgic "Kasumisō". Kudo recalled: "When I first read the title, an image of fluttering cherry blossoms came to mind. It was a very Japonesque visual, especially when matched with the striking opening notes of the song." She discussed with Kōki about altering the song to fit that initial image, and together they came up with a track that would be