What to read after Qualia the Purple (Light Novel)?

Junior high schooler Marii Yukari sees all humans, aside from herself, as robots through her vivid, purple eyes. Yet even with such a strange perspective on the world, her classmates treat her like an unassuming, strange girl, including Manabu "Gaku" Hatou, her sole friend. Yet strange things start occurring around Yukari, and when she is recruited into an underground organization due to her unique talents, Manabu finds herself tangled up in a realm of dangerous experiments and quantum physics unlike anything she could have ever imagined! Yet is her friendship with Marii enough to save them both from whatever awaits them in the scientific underbelly of the world?