The KASI Deep Rolling Imaging Fast Telescope (K-DRIFT) is a pioneering instrument designed to explore low-surface-brightness (LSB) phenomena. This white paper presents a compelling set of science cases that showcase K-DRIFT’s unique capabilities in unraveling the mysteries of intracluster light (ICL) and other LSB components within galaxy clusters. Exploring the origin of ICL in galaxy clusters and comparing the spatial distributions of ICL and dark matter will offer new insights into galaxy cluster dynamics. Moreover, investigating LSB objects in galaxy clusters, such as LSB structures in the brightest cluster galaxies, ultra-diffuse galaxies, and tidal features, will enhance our understanding of galaxy evolution within the cluster environment. We present our strategies for addressing scientific queries, encompassing LSB observation and analysis techniques, specialized simulations, and machine-learning approaches. Additionally, we examine the potential synergies between K-DRIFT and other ongoing and forthcoming multi-wavelength surveys. This white paper advocates for the recognition and support of K-DRIFT as a dedicated tool for advancing our understanding of the universe’s subtlest phenomena.

Introduction
Science Cases for K-DRIFT 
    Origin of Intracluster Light
    Spatial Distribution of ICL and Dark Matter
    ICL and Dynamical Evolution of Galaxy Clusters
    Brightest and Faintest Ends
    Environmental Effects on Galaxies
    Large-Scale Structures
    Cosmology
Strategies for LSB Studies
    Wide-Deep Survey
    Narrow-Band Imaging
    NUV Imaging
    Cluster/Group Simulations for K-DRIFT’s LSB Observations
    LSB Structure Detection using Machine Learning
Prospects for Synergies with Other Surveys
Conclusions
Acknowledgments
References

• Jaewon Yoo(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea) Corresponding author
• Kyungwon Chun(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea) Corresponding author
• Jae-Woo Kim(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea)
• Sungryong Hong(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea)
• Woowon Byun(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea)
• Sang-Hyun Chun(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea)
• Jongwan Ko(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea, Department of Astronomy and Space Science, University of Science and Technology, Korea, Daejeon 34113, Republic of Korea)
• Jihye Shin(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea, Department of Astronomy and Space Science, University of Science and Technology, Korea, Daejeon 34113, Republic of Korea)
• Kwang-il Seon(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea, Department of Astronomy and Space Science, University of Science and Technology, Korea, Daejeon 34113, Republic of Korea)
• Hong Soo Park(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea, Department of Astronomy and Space Science, University of Science and Technology, Korea, Daejeon 34113, Republic of Korea)
• Jeehye Shin(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea, Department of Astronomy and Space Science, University of Science and Technology, Korea, Daejeon 34113, Republic of Korea)
• Jaehyun Lee(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea, School of Physics, Korea Institute for Advanced Study, Seoul 02455, Republic of Korea)
• Jinsu Rhee(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea, Institut d’Astrophysique de Paris, Sorbonne Université, CNRS, 75014 Paris, France)
• Hyowon Kim(Departamento de Física, Universidad Técnica Federico Santa María, Valparaíso, Chile, Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea)
• Yongmin Yoon(Korea Astronomy and Space Science Institute, Daejeon 34055, Republic of Korea, Department of Astronomy and Atmospheric Sciences, Kyungpook National University, Daegu 41566, Republic of Korea)
• Cristiano G. Sabiu(Natural Science Research Institute, University of Seoul, Seoul 02504, Republic of Korea)