Here is the full list of all 47 BLUE REFLECTION / BLUE REFLECTION achievements.
Completed Chapter 4.
Completed Kei's Intermission.
Succeeded in a first Mission.
Completed Chapter 2.
Completed Chapter 3.
Completed Chapter 1.
Got a Fragment for the first time.
Completed Chapter 5.
Completed Chapter 6.
Completed Chapter 7.
Completed Chapter 8.
Completed Chapter 9.
Completed Chapter 10.
Completed Chapter 11.
Completed Chapter 12.
Completed Shihori's Intermission.
Completed Fumio's Intermission.
Completed Kaori and Rika's Intermission.
Completed Yuri's Intermission.
Completed Sarasa's Bond Episodes.
Completed Yuri's Bond Episodes.
Completed Sanae's Bond Episodes.
Completed Kei's Bond Episodes.
Completed Rika's Bond Episodes.
Completed Kaori's Bond Episodes.
Completed Fumio's Bond Episodes.
Completed Rin's Bond Episodes.
Completed Ako's Bond Episodes.
Completed Chihiro's Bond Episodes.
Completed Shihori's Bond Episodes.
Completed Mao's Bond Episodes.
Collected 25 Fragments.
Collected 50 Fragments.
Succeeded in 25 Missions.
Succeeded in 50 Missions.
Created a first item.
Created all items.
Reached at a maximal Reflector level.
Enhanced a Fragment to the maximum.
Tamed the petite dark monster in "Dark Cave".
Enjoyed chatting a great many times.
Defeated Yesod by Reflect Counter.
Defeated Cochma by Reflect Counter.
Defeated Tiphereth by Reflect Counter.
Defeated Netzach by Reflect Counter.
Defeated Daath by Reflect Counter.
Congratulations! You have unlocked all achievements.